227198429 has 2 divisors, whose sum is σ = 227198430. Its totient is φ = 227198428.

The previous prime is 227198381. The next prime is 227198431. The reversal of 227198429 is 924891722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223951225 + 3247204 = 14965^2 + 1802^2 .

It is a cyclic number.

It is not a de Polignac number, because 227198429 - 2²⁴ = 210421213 is a prime.

It is a super-2 number, since 2×227198429² = 103238252280136082, which contains 22 as substring.

Together with 227198431, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 227198429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227198459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113599214 + 113599215.

It is an arithmetic number, because the mean of its divisors is an integer number (113599215).

Almost surely, 2^227198429 is an apocalyptic number.

It is an amenable number.

227198429 is a deficient number, since it is larger than the sum of its proper divisors (1).

227198429 is an equidigital number, since it uses as much as digits as its factorization.

227198429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The square root of 227198429 is about 15073.1028325292. The cubic root of 227198429 is about 610.1947143336.

The spelling of 227198429 in words is "two hundred twenty-seven million, one hundred ninety-eight thousand, four hundred twenty-nine".